918219112992 has 60 divisors (see below), whose sum is σ = 2700456912846. Its totient is φ = 306073036800.

The previous prime is 918219112981. The next prime is 918219112999. The reversal of 918219112992 is 299211912819.

It is a happy number.

918219112992 is a `hidden beast` number, since 91 + 82 + 191 + 1 + 299 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 681357797136 + 236861315856 = 825444^2 + 486684^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (918219112999) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 177123009 + ... + 177128192.

Almost surely, 2^918219112992 is an apocalyptic number.

It is an amenable number.

918219112992 is an abundant number, since it is smaller than the sum of its proper divisors (1782237799854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

918219112992 is a wasteful number, since it uses less digits than its factorization.

918219112992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354251223 (or 354251206 counting only the distinct ones).

The product of its digits is 419904, while the sum is 54.

The spelling of 918219112992 in words is "nine hundred eighteen billion, two hundred nineteen million, one hundred twelve thousand, nine hundred ninety-two".